幻法双子星的主角是孖生姐妹松永美香和友美,两姐妹同时拥有超能力,而故事也是围绕这两姐妹所发生的事情,包括美香和仓茂师兄的恋情、友美和野由友情变成爱情、影浦进一郎对两姐妹的调查 ...。A noise is coming from the floor upstairs. Eunsu, hears this for over a month which causes uncontrollable anger to rise up. She gets eliminated again from a competition she had prepared for a long time. Eunsu decides to write her last piece with the theme of the noise between the floors and persuades her friend to help her follow and track the secret.。